What is the limiting reactant if 20.0 moles of O2 react with 30.0 moles of H2 according to the following reaction? 2 H2+ 02 → 2 H2O*
O A. H2
O B. 02
O C. Both A and B.
O D. H20

Which answer lists the fundamental forces in order from strongest to weakest

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

Why is it possible for different microorganisms to extract energy not only from carbohydrates and other biological molecules but from a large variety of substances?